If it obstructs the sidewalk and isn't moving, you can almost certainly move it. You should act in good faith and try to do so in a non-damaging manner if you w

If it obstructs the sidewalk and isn't moving, you can almost certainly move it. You should act in good faith and try to do so in a non-damaging manner if you want to avoid vandalism charges. If it's moving? You should just wait for it to go obstruct some other part of the sidewalk.